20521593

素因数分解:

$3^5\times {\mathrm{79}}^1\times {\mathrm{1069}}^1$

素因数の和:1163

約数の個数: 24

約数和(自身を含む): 31158400

約数和(自身を除く): 10636807

約数列:

[1, 3, 9, 27, 79, 81, 237, 243, 711, 1069, 2133, 3207, 6399, 9621, 19197, 28863, 84451, 86589, 253353, 259767, 760059, 2280177, 6840531, 20521593]

約数ペア:

[(1, 20521593), (3, 6840531), (9, 2280177), (27, 760059), (79, 259767), (81, 253353), (237, 86589), (243, 84451), (711, 28863), (1069, 19197), (2133, 9621), (3207, 6399)]